SEOUL, KOREA - OCTOBER 1: Steffi Graf of Germany competes against Gabriela Sabatini in the Women's Singles Tennis event at the 1988 Seoul Summer Olympic Games on October 1, 1988 in Seoul, South Korea. Graf won the Gold Medal, completing a spectacular year after becoming only the fifth player in history to complete the "Grand Slam" and then win an Olympic Gold Medal. (Photo by Pascal Rondeau/Getty Images)